JPH0643702Y2 - Color selector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a color selector different from the conventional color chart, which is suitable for a designer or the like to select a color to be specified for a printed matter, and particularly in process color printing. The present invention relates to a color selector suitable for selecting a color.

[Conventional technology]

Designers can select the color that matches the desired color on the printed matter by selecting the color that matches the desired color from the color chart or winding a strip of strip-shaped paper that displays various colors. It has been done by selecting the one that matches the desired color.

However, the color chart is originally made convenient for the printing side, and basically, the process color 4
Two of the primary colors are printed with a predetermined halftone dot density, and the other two primary colors are printed with a stepwise change of the halftone dot density in the vertical direction and the horizontal direction, respectively. It is prepared in the form of one book by binding the printed matters with only the predetermined value of the point density changed.

Therefore, colors with similar hues are displayed over multiple pages, and one of the two primary colors of the latter is 100% dot density and the other is 0% at two diagonally opposite corner positions.
Since the colors having the halftone dot density are displayed, visual illusion is likely to occur, and it is extremely difficult to select a desired color.

In addition, it is very complicated to select a color from a strip shape, and it is very complicated and it is difficult to select a color while comparing the colors. for that reason,
At present, there is a demand for the emergence of an alternative to a color chart that is convenient for color choosers.

[Problems to be solved by the device]

The present invention eliminates the drawbacks of the prior art as described above,
The present invention intends to provide a color selector which has a color frame arrangement completely different from that of the conventional color chart, and which can easily select a desired color and which is convenient for the color selecting side.

[Means for Solving the Problems]

The color selector according to the present invention gradually changes the saturation of one hue on each page from the lower side to the higher side, and changes the brightness sequentially from a small increase or decrease to a large increase or decrease as the saturation increases. It is configured by displaying the colors changed stepwise by process color printing.

[Action]

The color selector according to the present invention causes one of the hues to be displayed on one page in a color in which the lightness is finely changed when the saturation is low and the lightness is greatly changed as the saturation is increased. This means that in the range of light colors, which the human eye tends to more sensitively identify the difference to the color change, more colors are displayed, while in the range of dull colors that are dull to the color change. Will be displayed to the minimum.

This avoids creating a visual illusion by displaying more effective colors in a limited space and yet displaying only phase colors on each page.

〔Example〕

In the color selector of the present invention, as shown in FIG. 1, a plurality of color frames 1 for displaying colors are arranged on each page in alignment with each other in the vertical direction. The four rows (V1 to V4) and the eight rows (H1 to H8) in the left-right direction are shown as aligned arrays.

As will be described in detail later, in the color frame 1, the saturation of the hue is gradually changed from the lower one to the higher one, and as the saturation becomes higher, the lightness is sequentially changed from a small increase / decrease to a large increase / decrease. The colors that have been gradually changed are displayed by process color printing.

The color selector of the present invention uses three primary process colors of cyan c, magenta m, and yellow y from the viewpoint that the addition of black merely makes the color dull, and is not always necessary for selecting the color. Process printed.

In the vicinity of each color frame 1, the color designation value 2 for designating the color of the selected color to the printing company is displayed, and the dot density% of each of the process colors 3 primary colors constituting the color displayed in each color frame
Therefore, it is displayed respectively.

As shown schematically in FIG. 2, the relationship between the gradual saturation and the change of the lightness of each color displayed on the color frame on each page is as follows. The stepwise change L1 is configured to change in a direction A1 opposite to the increasing / decreasing direction A0 of the lightness change L0 in the saturation change S0 in the previous step.

That is, when the lightness is gradually increased at a certain saturation, the lightness is gradually decreased at the next saturation, and the lightness is gradually increased at the next saturation. By doing so, the respective colors that appear are sequentially displayed on each color frame 1.

In the illustrated case, the arrangement of the colors appearing by such a permutation in each color frame is the vertical direction row of the color frame 1 on one side in the left-right direction.
V1 is displayed sequentially from the top to the bottom, and the color at the bottom of the vertical column V1 is displayed in the top color 1b, and the next-stage color change from the color displayed in frame 1a is displayed at the bottom of the adjacent vertical column V2. Let The color frames of the vertical direction row V2 display colors that change stepwise from the bottom to the top, and the stepwise change colors are displayed sequentially upside down in each vertical row.

By having such an array relationship, when looking at the color frames in order, instead of temporarily interrupting the line of sight moved from top to bottom and moving from top to bottom, It avoids visual illusions by looking at the color frames continuously from bottom to top.

The arrangement of the gradually changing colors for each color frame can be arranged in the left-right direction, and which color frame in the four corners the first color is to be displayed in can be appropriately selected.

FIG. 3 is a diagram showing the relationship of the arrangement of the color frames, which is shown in the form of page 2 of the color selector shown in FIG. The color frames 1 are arranged side by side in the horizontal direction so as to have an appropriate space therebetween, and the horizontal rows H1 to H8 of the color frames on one page P1 are the left and right sides of the color frames of the adjacent page P2. They are arranged at positions corresponding to the spaced spaces between the direction rows h1 to h8.

The horizontal rows H1 to H8 of the color frames of the page P1 are also arranged in the same manner so as to correspond to the spaces between the horizontal rows h1 'to h8' of the color frames of the page P0 on the back side thereof. , The color frames of the front and back pages do not overlap each other so that the displayed color does not become muddy.

Next, the relationship between the pages of the colors displayed in the color frame will be described.

As described above, the color displayed in each color frame is provided by the process color printing of the three process colors of the three primary colors, cyan c, magenta m, and yellow y, and the hue, saturation, and lightness of each color are the dot density of these three primary colors. Is defined by

Regarding the numerical value of the dot density, printing is currently performed in units of 1%, and it is wasteful, if not impossible to represent all of them, and it complicates color selection. In this embodiment, the process printing is performed with the dot density having the following configuration. That is, when printing with the largest dot density change (A) for maximizing the hue of one primary color on the page,
Printing is performed with the smallest dot density change (F) in which the hue of one primary color is the weakest color, and with a plurality of intermediate, for example, four dot density changes (B to E) in between. When to do.

Table 1 shows the changes in the six-stage dot density in each page.
As shown in, the maximum dot density change A and the minimum dot density change F are always applied for the two primary colors, and the other primary color is the maximum dot density change to the minimum dot density change. (A➝B➝C➝D➝E➝F), or conversely, from the minimum dot density change to the maximum dot density change (F➝E➝D➝C➝B➝A), one page It is applied by sequentially changing each time.

As can be easily understood from Table 1, when the change in dot density of the primary color (magenta m) changed for each page becomes the minimum dot density change F (page 6), the next page ( 7th
As for the primary color that changes the dot density change on page (1), the dot density change of the primary color (yellow y) that is the smallest until then is sequentially changed. On the other hand, when the change in the dot density of the primary color (yellow y) changed for each page becomes the maximum dot density change A (page 11), the next page (page 12)
In the primary color whose dot density change is changed in (1), the dot density change of the primary color (cyan c) which has been the maximum until then is sequentially changed.

Such a configuration of changing the dot density means that when the page is turned, the color of the hue continuous with the color of the previous page is always displayed on the next page. Here, the configurations shown in the table are prepared for the purpose of illustration, and what kind of process color three primary colors of the halftone dot density change should be displayed on the first page should be appropriately selected. .

[Effect of device]

According to the present invention, it is possible to display one hue color for each page,
Further, since the colors displayed in each color frame can be displayed in a continuous form due to the change in saturation and the change in lightness, it is possible to avoid a visual illusion caused by different hues.

In addition, the colors are arranged so that the colors can be selected by the continuous round trip of the viewpoint, not the one-way movement of the viewpoint, on the color frames that are aligned in the horizontal direction. It is possible to prevent a difference or the like from occurring.

In addition, 3 of the 4 process colors, excluding black, are excluded.
By displaying each color by the primary color, it is possible to eliminate the display of the turbid color and to select the color more quickly.

Further, according to the present invention, the relative positions of the color frames between the adjacent pages are shifted so that the color displayed on the back page overlaps the color of the front page through the paper. You can avoid making the color muddy.

In addition, by forming the relationship of the colors displayed between the pages so that the pages before and after are always continuous, the difference in the colors can be easily grasped and the selection of the colors can be facilitated.

[Brief description of drawings]

FIG. 1 is a plan view showing a color selector according to an embodiment of the present invention. FIG. 2 is an explanatory diagram of colors displayed on a color frame of the color selector shown in FIG. FIG. 3 is a plan view showing the relative positional relationship of color frames between pages. 1, 1a, 1b …… Color frame 2 …… Color specification value V1 to V4 …… (color frame) vertical direction line H1 to H8 …… (color frame) horizontal direction line

Claims (9)

[Scope of utility model registration request] 1. The saturation of one hue on each page is changed step by step from low to high, and the lightness is changed step by step from small increase or decrease to large increase or decrease as the saturation increases. A color selector characterized in that the colors changed to are displayed by process color printing. 2. A gradual change in lightness in each gradual change in saturation of the color is changed in a direction opposite to a lightness increase / decrease direction in the previous saturation change. Color selector. 3. The color selector according to claim 1, wherein each of the colors is displayed in a plurality of color frames aligned in the horizontal direction. 4. The color frame sequentially displays colors according to the order of gradual saturation and lightness change in the vertical direction or in the left-right direction, and the next stage of the color displayed in the color frame at one end in the vertical direction or the horizontal direction. 4. The color selector according to claim 3, wherein the changing color is displayed on a color frame at a position adjacent to the left and right or one side in the vertical direction. 5. The stepwise change of the color displayed on the color frame is provided by printing three primary process colors of yellow, magenta, and cyan.
The color selector described in one of the above. 6. The color frames on each of the pages are aligned in the horizontal direction so as to be spaced apart from each other, and each color frame on each page corresponds to a space between adjacent color frames of adjacent pages. 7. The color selector according to claim 1, wherein the color selector is arranged in 7. The change in the color displayed on the color screen between the pages is one of the three primary colors of the process color with the largest change in halftone dot density, and the other one of the primary colors with the smallest change in halftone dot density. 7. The method according to claim 1, wherein each of the remaining primary colors is provided by process color printing with each dot density change that sequentially changes between the maximum and minimum dot density changes. Color selector. 8. A primary color that is sequentially changed between the maximum and minimum dot density changes is changed to the maximum or minimum dot density change and then fixed to the maximum or minimum dot density change. 8. The one of the primary colors set for the minimum dot density change is provided with each dot density change sequentially changed from the maximum or minimum dot density change to the minimum or maximum dot density change. Color selector. 9. When the one of the three process color primary colors which is sequentially changed between the maximum and minimum dot density changes is changed from the maximum or minimum to the minimum or maximum dot density change, the minimum or maximum 9. The color selector according to claim 8, wherein one of the primary colors set to the maximum dot density change is sequentially changed to the maximum or minimum dot density change.